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Use the rocket_i18n crate
This commit is contained in:
Bat
parent
14c3fd5c8f
commit
cafb0e2277
4 changed files with 20 additions and 133 deletions
13
Cargo.lock
generated
13
Cargo.lock
generated
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@ -1014,6 +1014,7 @@ dependencies = [
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"rocket 0.4.0-dev (git+https://github.com/SergioBenitez/Rocket?rev=df7111143e466c18d1f56377a8d9530a5a306aba)",
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"rocket_codegen 0.4.0-dev (git+https://github.com/SergioBenitez/Rocket?rev=df7111143e466c18d1f56377a8d9530a5a306aba)",
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"rocket_contrib 0.4.0-dev (git+https://github.com/SergioBenitez/Rocket?rev=df7111143e466c18d1f56377a8d9530a5a306aba)",
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"rocket_i18n 0.1.1 (git+https://github.com/BaptisteGelez/rocket_i18n?rev=457b88c59ec31905a9193df43df58bee55b4b83d)",
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"serde 1.0.42 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive 1.0.43 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_json 1.0.16 (registry+https://github.com/rust-lang/crates.io-index)",
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@ -1269,6 +1270,17 @@ dependencies = [
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"time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rocket_i18n"
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version = "0.1.1"
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source = "git+https://github.com/BaptisteGelez/rocket_i18n?rev=457b88c59ec31905a9193df43df58bee55b4b83d#457b88c59ec31905a9193df43df58bee55b4b83d"
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dependencies = [
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"gettext-rs 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"rocket 0.4.0-dev (git+https://github.com/SergioBenitez/Rocket?rev=df7111143e466c18d1f56377a8d9530a5a306aba)",
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"serde_json 1.0.16 (registry+https://github.com/rust-lang/crates.io-index)",
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"tera 0.11.7 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rustc-demangle"
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version = "0.1.7"
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@ -2085,6 +2097,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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"checksum rocket_codegen_next 0.4.0-dev (git+https://github.com/SergioBenitez/Rocket?rev=df7111143e466c18d1f56377a8d9530a5a306aba)" = "<none>"
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"checksum rocket_contrib 0.4.0-dev (git+https://github.com/SergioBenitez/Rocket?rev=df7111143e466c18d1f56377a8d9530a5a306aba)" = "<none>"
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"checksum rocket_http 0.4.0-dev (git+https://github.com/SergioBenitez/Rocket?rev=df7111143e466c18d1f56377a8d9530a5a306aba)" = "<none>"
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"checksum rocket_i18n 0.1.1 (git+https://github.com/BaptisteGelez/rocket_i18n?rev=457b88c59ec31905a9193df43df58bee55b4b83d)" = "<none>"
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"checksum rustc-demangle 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "11fb43a206a04116ffd7cfcf9bcb941f8eb6cc7ff667272246b0a1c74259a3cb"
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"checksum safemem 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e27a8b19b835f7aea908818e871f5cc3a5a186550c30773be987e155e8163d8f"
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"checksum schannel 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "85fd9df495640643ad2d00443b3d78aae69802ad488debab4f1dd52fc1806ade"
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@ -45,3 +45,7 @@ rev = "df7111143e466c18d1f56377a8d9530a5a306aba"
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features = ["tera_templates", "json"]
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git = "https://github.com/SergioBenitez/Rocket"
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rev = "df7111143e466c18d1f56377a8d9530a5a306aba"
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[dependencies.rocket_i18n]
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git = "https://github.com/BaptisteGelez/rocket_i18n"
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rev = "457b88c59ec31905a9193df43df58bee55b4b83d"
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130
src/i18n.rs
130
src/i18n.rs
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@ -1,130 +0,0 @@
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use gettextrs::*;
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use rocket::{Data, Request, Rocket, fairing::{Fairing, Info, Kind}};
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use serde_json;
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use std::collections::HashMap;
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use std::env;
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use std::fs;
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use std::io::{BufRead, BufReader};
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use std::path::{Path, PathBuf};
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use std::process::Command;
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use tera::{Tera, Error as TeraError};
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const ACCEPT_LANG: &'static str = "Accept-Language";
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pub struct I18n {
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domain: &'static str
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}
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impl I18n {
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pub fn new(domain: &'static str) -> I18n {
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I18n {
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domain: domain
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}
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}
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}
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impl Fairing for I18n {
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fn info(&self) -> Info {
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Info {
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name: "Gettext I18n",
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kind: Kind::Attach | Kind::Request
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}
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}
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fn on_attach(&self, rocket: Rocket) -> Result<Rocket, Rocket> {
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update_po(self.domain);
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compile_po(self.domain);
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bindtextdomain(self.domain, fs::canonicalize(&PathBuf::from("./translations/")).unwrap().to_str().unwrap());
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textdomain(self.domain);
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Ok(rocket)
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}
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fn on_request(&self, request: &mut Request, _: &Data) {
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let lang = request
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.headers()
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.get_one(ACCEPT_LANG)
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.unwrap_or("en")
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.split(",")
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.nth(0)
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.unwrap_or("en");
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// We can't use setlocale(LocaleCategory::LcAll, lang), because it only accepts system-wide installed
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// locales (and most of the time there are only a few of them).
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// But, when we set the LANGUAGE environment variable, and an empty string as a second parameter to
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// setlocale, gettext will be smart enough to find a matching locale in the locally installed ones.
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env::set_var("LANGUAGE", lang);
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setlocale(LocaleCategory::LcAll, "");
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}
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}
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fn update_po(domain: &str) {
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let pot_path = Path::new("po").join(format!("{}.pot", domain));
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for lang in get_locales() {
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let po_path = Path::new("po").join(format!("{}.po", lang.clone()));
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if po_path.exists() && po_path.is_file() {
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println!("Updating {}", lang.clone());
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// Update it
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Command::new("msgmerge")
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.arg("-U")
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.arg(po_path.to_str().unwrap())
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.arg(pot_path.to_str().unwrap())
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.spawn()
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.expect("Couldn't update PO file");
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} else {
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println!("Creating {}", lang.clone());
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// Create it from the template
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Command::new("msginit")
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.arg(format!("--input={}", pot_path.to_str().unwrap()))
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.arg(format!("--output-file={}", po_path.to_str().unwrap()))
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.arg("-l")
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.arg(lang)
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.arg("--no-translator")
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.spawn()
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.expect("Couldn't init PO file");
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}
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}
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}
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fn compile_po(domain: &str) {
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for lang in get_locales() {
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let po_path = Path::new("po").join(format!("{}.po", lang.clone()));
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let mo_dir = Path::new("translations")
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.join(lang.clone())
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.join("LC_MESSAGES");
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fs::create_dir_all(mo_dir.clone()).expect("Couldn't create MO directory");
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let mo_path = mo_dir.join(format!("{}.mo", domain));
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Command::new("msgfmt")
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.arg(format!("--output-file={}", mo_path.to_str().unwrap()))
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.arg(po_path)
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.spawn()
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.expect("Couldn't compile translations");
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}
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}
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fn get_locales() -> Vec<String> {
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let linguas_file = fs::File::open(Path::new("po").join("LINGUAS")).expect("Couldn't find po/LINGUAS file");
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let linguas = BufReader::new(&linguas_file);
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linguas.lines().map(Result::unwrap).collect()
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}
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fn tera_gettext(msg: serde_json::Value, ctx: HashMap<String, serde_json::Value>) -> Result<serde_json::Value, TeraError> {
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let trans = gettext(msg.as_str().unwrap());
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Ok(serde_json::Value::String(Tera::one_off(trans.as_ref(), &ctx, false).unwrap_or(String::from(""))))
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}
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fn tera_ngettext(msg: serde_json::Value, ctx: HashMap<String, serde_json::Value>) -> Result<serde_json::Value, TeraError> {
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let trans = ngettext(
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ctx.get("singular").unwrap().as_str().unwrap(),
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msg.as_str().unwrap(),
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ctx.get("count").unwrap().as_u64().unwrap() as u32
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);
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Ok(serde_json::Value::String(Tera::one_off(trans.as_ref(), &ctx, false).unwrap_or(String::from(""))))
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}
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pub fn tera(t: &mut Tera) {
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t.register_filter("_", tera_gettext);
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t.register_filter("_n", tera_ngettext);
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}
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@ -25,6 +25,7 @@ extern crate openssl;
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extern crate reqwest;
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extern crate rocket;
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extern crate rocket_contrib;
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extern crate rocket_i18n;
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extern crate serde;
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#[macro_use]
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extern crate serde_derive;
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mod activity_pub;
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mod db_conn;
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mod i18n;
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mod models;
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mod schema;
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mod routes;
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@ -130,8 +130,8 @@ fn main() {
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])
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.manage(init_pool())
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.attach(Template::custom(|engines| {
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i18n::tera(&mut engines.tera);
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rocket_i18n::tera(&mut engines.tera);
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}))
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.attach(i18n::I18n::new("plume"))
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.attach(rocket_i18n::I18n::new("plume"))
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.launch();
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}
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